xref: /trunk/main/basic/source/inc/iosys.hxx (revision cdf0e10c)
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27 
28 #ifndef _SBIOSYS_HXX
29 #define _SBIOSYS_HXX
30 
31 #include <tools/stream.hxx>
32 #ifndef _SBERRORS_HXX
33 #include <basic/sberrors.hxx>
34 #endif
35 
36 class SvStream;
37 
38 // Zur Zeit sind globale Dateien (Kanalnummern 256 bis 511)
39 // nicht implementiert.
40 
41 #define CHANNELS 256
42 #define CONSOLE  0
43 
44 #define	SBSTRM_INPUT	0x0001		// Input
45 #define	SBSTRM_OUTPUT	0x0002		// Output
46 #define	SBSTRM_RANDOM	0x0004		// Random
47 #define	SBSTRM_APPEND	0x0008		// Append
48 #define	SBSTRM_BINARY	0x0010		// Binary
49 
50 class SbiStream {
51 	SvStream* pStrm;				// der Stream
52 	sal_uIntPtr  nExpandOnWriteTo;		// bei Schreibzugriff, den Stream
53 									// bis zu dieser Groesse aufblasen
54 	ByteString aLine;				// aktuelle Zeile
55 	sal_uIntPtr  nLine;					// aktuelle Zeilennummer
56 	short  nLen;	 				// Pufferlaenge
57 	short  nMode;					// Bits:
58 	short  nChan;					// aktueller Kanal
59 	SbError nError;					// letzter Fehlercode
60 	void   MapError();				// Fehlercode mappen
61 
62 public:
63 	SbiStream();
64    ~SbiStream();
65 	SbError Open( short, const ByteString&, short, short, short );
66 	SbError Close();
67 	SbError Read( ByteString&, sal_uInt16 = 0, bool bForceReadingPerByte=false );
68 	SbError Read( char& );
69 	SbError Write( const ByteString&, sal_uInt16 = 0 );
70 
71 	bool IsText() const		{ return (nMode & SBSTRM_BINARY) == 0; }
72 	bool IsRandom() const	{ return (nMode & SBSTRM_RANDOM) != 0; }
73 	bool IsBinary() const	{ return (nMode & SBSTRM_BINARY) != 0; }
74 	bool IsSeq() const		{ return (nMode & SBSTRM_RANDOM) == 0; }
75 	bool IsAppend() const	{ return (nMode & SBSTRM_APPEND) != 0; }
76 	short GetBlockLen() const 		   { return nLen; 			}
77 	short GetMode() const 			   { return nMode; 			}
78 	sal_uIntPtr GetLine() const			   { return nLine;			}
79 	void SetExpandOnWriteTo( sal_uIntPtr n ) { nExpandOnWriteTo = n;	}
80 	void ExpandFile();
81 	SvStream* GetStrm() 			   { return pStrm; 		   	}
82 };
83 
84 class SbiIoSystem {
85 	SbiStream* pChan[ CHANNELS ];
86 	ByteString	aPrompt;			// Input-Prompt
87 	ByteString	aIn, aOut;	  		// Console-Buffer
88 	short     nChan;				// aktueller Kanal
89 	SbError	  nError;				// letzter Fehlercode
90 	void	  ReadCon( ByteString& );
91 	void	  WriteCon( const ByteString& );
92 public:
93 	SbiIoSystem();
94    ~SbiIoSystem();
95 	SbError GetError();
96 	void  Shutdown();
97 	void  SetPrompt( const ByteString& r ) { aPrompt = r; }
98 	void  SetChannel( short n  )	   { nChan = n;   }
99 	short GetChannel() const		   { return nChan;}
100 	void  ResetChannel() 			   { nChan = 0;   }
101 	void  Open( short, const ByteString&, short, short, short );
102 	void  Close();
103 	void  Read( ByteString&, short = 0 );
104 	char  Read();
105 	void  Write( const ByteString&, short = 0 );
106 	short NextChannel();
107 	// 0 == bad channel or no SvStream (nChannel=0..CHANNELS-1)
108 	SbiStream* GetStream( short nChannel ) const;
109 	void  CloseAll(); // JSM
110 };
111 
112 #endif
113 
114